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When error from local macro, include macro def span - #161051

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When error from local macro, include macro def span#161051
estebank wants to merge 1 commit into
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@estebank

@estebank estebank commented Aug 13, 2026

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  • mention -Zmacro-backtrace only for non-local macros
  • include span for local macro encompassing error

@estebank
When error from local macro, include macro def span
1f00b5c 
- mention `-Zmacro-backtrace` only for non-local macros
- include span for local macro encompassing error
@rustbot

rustbot commented Aug 13, 2026

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rustc_errors::emitter was changed

cc @Muscraft

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. labels Aug 13, 2026
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rustbot commented Aug 13, 2026

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r? @adwinwhite

rustbot has assigned @adwinwhite.
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rust-log-analyzer commented Aug 13, 2026

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The job aarch64-gnu-llvm-21-1 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot) 
Saved the actual stderr to `/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/internal-lints/find_attr/find_attr.stderr`
diff of stderr:

68    |
69 LL |     find_attr!(attrs, wildcard);
70    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    = note: this error originates in the macro `$crate::find_attr` which comes from the expansion of the macro `find_attr` (in Nightly builds, run with -Z macro-backtrace for more info)
+    = note: the error originates in the macro `$crate::find_attr` which comes from the expansion of the macro `find_attr` (in Nightly builds, run with -Z macro-backtrace for more info)
72 
73 error: aborting due to 6 previous errors
---
To only update this specific test, also pass `--test-args internal-lints/find_attr.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/internal-lints/find_attr.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--check-cfg" "cfg(test,FALSE)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/internal-lints/find_attr" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Z" "unstable-options"
stdout: none
--- stderr -------------------------------
error: use of `AttributeKind` in `find_attr!(...)` invocation
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:14:23
   |
LL |     find_attr!(attrs, AttributeKind::Inline(..));
   |                       ^^^^^^^^^^^^^
   |
   = note: `find_attr!(...)` already imports `AttributeKind::*`
   = help: remove `AttributeKind`
note: the lint level is defined here
  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:5:9
   |
LL | #![deny(rustc::bad_use_of_find_attr)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: use of `AttributeKind` in `find_attr!(...)` invocation
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:16:23
   |
LL |     find_attr!(attrs, AttributeKind::Inline{..} | AttributeKind::Deprecated {..});
   |                       ^^^^^^^^^^^^^
   |
   = note: `find_attr!(...)` already imports `AttributeKind::*`
   = help: remove `AttributeKind`

error: use of `AttributeKind` in `find_attr!(...)` invocation
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:16:51
   |
LL |     find_attr!(attrs, AttributeKind::Inline{..} | AttributeKind::Deprecated {..});
   |                                                   ^^^^^^^^^^^^^
   |
   = note: `find_attr!(...)` already imports `AttributeKind::*`
   = help: remove `AttributeKind`

error: use of `AttributeKind` in `find_attr!(...)` invocation
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:20:23
   |
LL |     find_attr!(attrs, AttributeKind::Inline(..) => todo!());
   |                       ^^^^^^^^^^^^^
   |
   = note: `find_attr!(...)` already imports `AttributeKind::*`
   = help: remove `AttributeKind`

error: use of `AttributeKind` in `find_attr!(...)` invocation
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:22:23
   |
LL |     find_attr!(attrs, AttributeKind::Inline(..) if true => todo!());
   |                       ^^^^^^^^^^^^^
   |
   = note: `find_attr!(...)` already imports `AttributeKind::*`
   = help: remove `AttributeKind`

error: unreachable pattern
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:25:5
   |
LL |     find_attr!(attrs, wildcard);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
   |
note: multiple earlier patterns match some of the same values
  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:25:5
   |
LL |     find_attr!(attrs, wildcard);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |     |
   |     matches some of the same values
   |     matches some of the same values
   |     collectively making this unreachable
note: the lint level is defined here
  --> /checkout/tests/ui-fulldeps/internal-lints/find_attr.rs:25:5
   |
LL |     find_attr!(attrs, wildcard);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: the error originates in the macro `$crate::find_attr` which comes from the expansion of the macro `find_attr` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 6 previous errors
------------------------------------------
---
To only update this specific test, also pass `--test-args internal-lints/lint_pass_impl_without_macro.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--check-cfg" "cfg(test,FALSE)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Z" "unstable-options"
stdout: none
--- stderr -------------------------------
error: implementing `LintPass` by hand
##[error]  --> /checkout/tests/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.rs:20:6
   |
---
---- [ui] tests/ui-fulldeps/rustc-dev-remap.rs#only-remap stdout ----
Saved the actual stderr to `/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/rustc-dev-remap.only-remap/rustc-dev-remap.only-remap.stderr`
diff of stderr:

24   ::: /rustc-dev/xyz/compiler/rustc_ast/src/visit.rs:LL:COL
25    |
26    = note: in this macro invocation
-    = note: this error originates in the macro `common_visitor_and_walkers` (in Nightly builds, run with -Z macro-backtrace for more info)
+    = note: the error originates in the macro `common_visitor_and_walkers` (in Nightly builds, run with -Z macro-backtrace for more info)
28 
---
To only update this specific test, also pass `--test-args rustc-dev-remap.rs`

error in revision `only-remap`: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/rustc-dev-remap.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--cfg" "only_remap" "--check-cfg" "cfg(test,FALSE,only_remap,remap_unremap)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/rustc-dev-remap.only-remap" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Z" "simulate-remapped-rust-src-base=/rustc-dev/xyz"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `NotAValidResultType: VisitorResult` is not satisfied
##[error]  --> /checkout/tests/ui-fulldeps/rustc-dev-remap.rs:26:19
   |
LL |     type Result = NotAValidResultType;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the nightly-only, unstable trait `VisitorResult` is not implemented for `NotAValidResultType`
  --> /checkout/tests/ui-fulldeps/rustc-dev-remap.rs:23:1
   |
LL | struct NotAValidResultType;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: the following other types implement trait `VisitorResult`
  --> /rustc-dev/xyz/compiler/rustc_ast_ir/src/visit.rs:12:0
   |
   = note: `()`
  ::: /rustc-dev/xyz/compiler/rustc_ast_ir/src/visit.rs:27:0
   |
   = note: `ControlFlow<T>`
  ::: /rustc-dev/xyz/compiler/rustc_ast_ir/src/visit.rs:44:0
   |
   = note: `Result<(), E>`
note: required by a bound in `rustc_ast::visit::Visitor::Result`
  --> /rustc-dev/xyz/compiler/rustc_ast/src/visit.rs:516:16
  ::: /rustc-dev/xyz/compiler/rustc_ast/src/visit.rs:1143:0
   |
   = note: in this macro invocation
   = note: the error originates in the macro `common_visitor_and_walkers` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 1 previous error
---
Saved the actual stderr to `/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/rustc-dev-remap.remap-unremap/rustc-dev-remap.remap-unremap.stderr`
diff of stderr:

28 ...
29 LL | common_visitor_and_walkers!(Visitor<'a>);
30    | ---------------------------------------- in this macro invocation
-    = note: this error originates in the macro `common_visitor_and_walkers` (in Nightly builds, run with -Z macro-backtrace for more info)
+    = note: the error originates in the macro `common_visitor_and_walkers` (in Nightly builds, run with -Z macro-backtrace for more info)
32 
33 error: aborting due to 1 previous error
---
To only update this specific test, also pass `--test-args rustc-dev-remap.rs`

error in revision `remap-unremap`: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/rustc-dev-remap.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--cfg" "remap_unremap" "--check-cfg" "cfg(test,FALSE,only_remap,remap_unremap)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/rustc-dev-remap.remap-unremap" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Z" "simulate-remapped-rust-src-base=/rustc-dev/xyz" "-Ztranslate-remapped-path-to-local-path=yes"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `NotAValidResultType: VisitorResult` is not satisfied
##[error]  --> /checkout/tests/ui-fulldeps/rustc-dev-remap.rs:26:19
   |
LL |     type Result = NotAValidResultType;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the nightly-only, unstable trait `VisitorResult` is not implemented for `NotAValidResultType`
  --> /checkout/tests/ui-fulldeps/rustc-dev-remap.rs:23:1
   |
LL | struct NotAValidResultType;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
help: the following other types implement trait `VisitorResult`
---
...
LL | impl<T> VisitorResult for ControlFlow<T> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ControlFlow<T>`
...
LL | impl<E> VisitorResult for Result<(), E> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Result<(), E>`
note: required by a bound in `rustc_ast::visit::Visitor::Result`
  --> /checkout/compiler/rustc_ast/src/visit.rs:516:30
   |
LL |                 type Result: VisitorResult = ();
   |                              ^^^^^^^^^^^^^ required by this bound in `Visitor::Result`
...
LL | common_visitor_and_walkers!(Visitor<'a>);
   | ---------------------------------------- in this macro invocation
   = note: the error originates in the macro `common_visitor_and_walkers` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 1 previous error

---
To only update this specific test, also pass `--test-args session-diagnostic/diagnostic-derive-doc-comment-field.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--check-cfg" "cfg(test,FALSE)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `NotIntoDiagArg: IntoDiagArg` is not satisfied
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.rs:35:10
   |
---
             Box<(dyn std::error::Error + 'static)>
             CString
             Cow<'a, str>
           and 44 others
   = note: there's an inherent method on `DiagInner` of the same name, which can be auto-dereferenced from `&mut DiagInner`
note: required by a bound in `Diag::<'a, G>::arg`
  --> /rustc/FAKE_PREFIX/compiler/rustc_errors/src/diagnostic.rs:520:8
  ::: /rustc/FAKE_PREFIX/compiler/rustc_errors/src/diagnostic.rs:1230:7
   |
   = note: in this macro invocation
   = note: the error originates in the macro `with_fn` (in Nightly builds, run with -Z macro-backtrace for more info)
---
diff of stderr:

163    |          ^^^^^^^^^^ expected `}` in format string
164    |
165    = note: if you intended to print `{`, you can escape it using `{{`
-    = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
+    = note: the error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
167 
168 error: invalid format string: unmatched `}` found
169   --> $DIR/diagnostic-derive-inline.rs:178:10

172    |          ^^^^^^^^^^ unmatched `}` in format string
173    |
174    = note: if you intended to print `}`, you can escape it using `}}`
-    = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
+    = note: the error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)
176 
177 error: derive(Diagnostic): the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
178   --> $DIR/diagnostic-derive-inline.rs:198:5


The actual stderr differed from the expected stderr
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args session-diagnostic/diagnostic-derive-inline.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--check-cfg" "cfg(test,FALSE)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/session-diagnostic/diagnostic-derive-inline" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0"
stdout: none
--- stderr -------------------------------
error: derive(Diagnostic): unsupported type attribute for diagnostic derive enum
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:44:1
   |
---
   |
LL |     Foo,
   |     ^^^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:49:5
   |
LL |     Bar,
   |     ^^^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: expected parentheses: #[diag(...)]
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:55:8
   |
LL | #[diag = "E0123"]
   |        ^

error: derive(Diagnostic): `#[nonsense(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:60:1
   |
LL | #[nonsense("this is an example message", code = E0123)]
   | ^

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:60:1
   |
LL | #[nonsense("this is an example message", code = E0123)]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:67:1
   |
LL | #[diag(code = E0123)]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:72:1
   |
LL | #[diag(nonsense("foo"), code = E0123, slug = "foo")]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:77:1
   |
LL | #[diag(nonsense = "...", code = E0123, slug = "foo")]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:82:1
   |
LL | #[diag(nonsense = 4, code = E0123, slug = "foo")]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): unknown argument
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:87:52
   |
LL | #[diag("this is an example message", code = E0123, slug = "foo")]
   |                                                    ^^^^
   |
   = note: only the `code` parameter is valid after the message

error: derive(Diagnostic): `#[suggestion = ...]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:94:5
   |
LL |     #[suggestion = "bar"]
   |     ^

---

error: derive(Diagnostic): attribute specified multiple times
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:106:52
   |
LL | #[diag("this is an example message", code = E0123, code = E0456)]
   |                                                    ^^^^
   |
note: previously specified here
  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:106:38
   |
LL | #[diag("this is an example message", code = E0123, code = E0456)]
   |                                      ^^^^

error: derive(Diagnostic): diagnostic message must be the first argument
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:111:38
   |
LL | #[diag("this is an example message", no_crate::example, code = E0123)]
   |                                      ^^^^^^^^

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:116:1
   |
LL | struct KindNotProvided {} //~ ERROR diagnostic message not specified
   | ^^^^^^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:119:1
   |
LL | #[diag(code = E0123)]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): the `#[primary_span]` attribute can only be applied to fields of type `Span` or `MultiSpan`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:130:5
   |
LL |     #[primary_span]
   |     ^

error: derive(Diagnostic): `#[nonsense]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:138:5
   |
LL |     #[nonsense]
   |     ^

error: derive(Diagnostic): the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:155:5
   |
LL |     #[label("with a label")]
   |     ^

error: derive(Diagnostic): `name` doesn't refer to a field on this type
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:163:46
   |
LL |     #[suggestion("with a suggestion", code = "{name}")]
   |                                              ^^^^^^^^

error: invalid format string: expected `}` but string was terminated
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:168:10
   |
LL | #[derive(Diagnostic)]
   |          ^^^^^^^^^^ expected `}` in format string
   |
   = note: if you intended to print `{`, you can escape it using `{{`
   = note: the error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)

error: invalid format string: unmatched `}` found
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:178:10
   |
LL | #[derive(Diagnostic)]
   |          ^^^^^^^^^^ unmatched `}` in format string
   |
   = note: if you intended to print `}`, you can escape it using `}}`
   = note: the error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info)

error: derive(Diagnostic): the `#[label(...)]` attribute can only be applied to fields of type `Span` or `MultiSpan`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:198:5
   |
LL |     #[label("with a label")]
   |     ^

error: derive(Diagnostic): suggestion without `code = "..."`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:217:5
   |
LL |     #[suggestion("with a suggestion")]
   |     ^

error: derive(Diagnostic): invalid nested attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:225:39
   |
LL |     #[suggestion("with a suggestion", nonsense = "bar")]
   |                                       ^^^^^^^^
   |
   = help: only `style`, `code` and `applicability` are valid nested attributes

error: derive(Diagnostic): suggestion without `code = "..."`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:225:5
   |
LL |     #[suggestion("with a suggestion", nonsense = "bar")]
   |     ^

error: derive(Diagnostic): invalid nested attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:234:39
   |
LL |     #[suggestion("with a suggestion", msg = "bar")]
   |                                       ^^^
   |
   = help: only `style`, `code` and `applicability` are valid nested attributes

error: derive(Diagnostic): suggestion without `code = "..."`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:234:5
   |
LL |     #[suggestion("with a suggestion", msg = "bar")]
   |     ^

error: derive(Diagnostic): wrong field type for suggestion
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:257:5
   |
LL |     #[suggestion("with a suggestion", code = "This is suggested code")]
   |     ^
   |
   = help: `#[suggestion(...)]` should be applied to fields of type `Span` or `(Span, Applicability)`

error: derive(Diagnostic): attribute specified multiple times
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:273:24
   |
LL |     suggestion: (Span, Span, Applicability),
---
   |
LL |     suggestion: (Applicability, Applicability, Span),
   |                  ^^^^^^^^^^^^^

error: derive(Diagnostic): `#[label = ...]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:288:5
   |
LL |     #[label = "bar"]
   |     ^

error: derive(Diagnostic): attribute specified multiple times
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:387:5
   |
LL |     #[suggestion("with a suggestion", code = "...", applicability = "maybe-incorrect")]
   |     ^
   |
note: previously specified here
  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:389:24
   |
LL |     suggestion: (Span, Applicability),
   |                        ^^^^^^^^^^^^^

error: derive(Diagnostic): invalid applicability
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:395:69
   |
LL |     #[suggestion("with a suggestion", code = "...", applicability = "batman")]
   |                                                                     ^^^^^^^^

error: derive(Diagnostic): the `#[help(...)]` attribute can only be applied to fields of type `Span`, `MultiSpan`, `bool` or `()`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:458:5
   |
LL |     #[help("with a help")]
   |     ^

error: derive(Diagnostic): no nested attribute expected here
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:467:29
   |
LL |     #[label("with a label", foo)]
   |                             ^^^

error: derive(Diagnostic): a diagnostic message must be the first argument to the attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:475:29
   |
LL |     #[label("with a label", "and another one?")]
   |                             ^^^^^^^^^^^^^^^^^^

error: derive(Diagnostic): no nested attribute expected here
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:483:29
   |
LL |     #[label("with a label", foo = "...")]
   |                             ^^^

error: derive(Diagnostic): no nested attribute expected here
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:491:29
   |
LL |     #[label("with a label", foo("..."))]
   |                             ^^^

error: derive(Diagnostic): `#[error(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:511:1
   |
---
   |
LL | #[error("this is an example message", code = E0123)]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): `#[warn_(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:518:1
   |
LL | #[warn_("this is an example message", code = E0123)]
   | ^

error: derive(Diagnostic): diagnostic message not specified
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:518:1
   |
LL | #[warn_("this is an example message", code = E0123)]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): `#[lint(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:525:1
   |
LL | #[lint("this is an example message", code = E0123)]
---
   |
LL | #[lint("this is an example message", code = E0123)]
   | ^
   |
   = help: specify the message as the first argument to the `#[diag(...)]` attribute, such as `#[diag("Example error")]`

error: derive(Diagnostic): attribute specified multiple times
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:534:53
   |
LL |     #[suggestion("with a suggestion", code = "...", code = ",,,")]
   |                                                     ^^^^
   |
note: previously specified here
  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:534:39
   |
LL |     #[suggestion("with a suggestion", code = "...", code = ",,,")]
   |                                       ^^^^

error: derive(Diagnostic): wrong types for suggestion
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:543:24
   |
LL |     suggestion: (Span, usize),
   |                        ^^^^^
   |
   = help: `#[suggestion(...)]` on a tuple field must be applied to fields of type `(Span, Applicability)`

error: derive(Diagnostic): wrong types for suggestion
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:551:17
   |
LL |     suggestion: (Span,),
   |                 ^^^^^^^
   |
   = help: `#[suggestion(...)]` on a tuple field must be applied to fields of type `(Span, Applicability)`

error: derive(Diagnostic): suggestion without `code = "..."`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:558:5
   |
LL |     #[suggestion("with a suggestion")]
   |     ^

error: derive(Diagnostic): `#[multipart_suggestion(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:565:1
   |
LL | #[multipart_suggestion("with a suggestion")]
   | ^
   |
   = help: consider creating a `Subdiagnostic` instead

error: derive(Diagnostic): `#[multipart_suggestion(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:568:1
   |
LL | #[multipart_suggestion()]
   | ^
   |
   = help: consider creating a `Subdiagnostic` instead

error: derive(Diagnostic): `#[multipart_suggestion(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:572:5
   |
LL |     #[multipart_suggestion("with a suggestion")]
   |     ^
   |
   = help: consider creating a `Subdiagnostic` instead

error: derive(Diagnostic): `#[suggestion(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:580:1
   |
LL | #[suggestion("with a suggestion", code = "...")]
   | ^
   |
   = help: `#[label]` and `#[suggestion]` can only be applied to fields

error: derive(Diagnostic): `#[label]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:589:1
   |
LL | #[label]
   | ^
   |
   = help: subdiagnostic message is missing

error: derive(Diagnostic): `#[subdiagnostic(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:623:5
   |
LL |     #[subdiagnostic(bad)]
   |     ^

error: derive(Diagnostic): `#[subdiagnostic = ...]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:631:5
   |
LL |     #[subdiagnostic = "bad"]
   |     ^

error: derive(Diagnostic): `#[subdiagnostic(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:639:5
   |
LL |     #[subdiagnostic(bad, bad)]
   |     ^

error: derive(Diagnostic): `#[subdiagnostic(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:647:5
   |
LL |     #[subdiagnostic("bad")]
   |     ^

error: derive(Diagnostic): `#[subdiagnostic(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:655:5
   |
LL |     #[subdiagnostic(eager)]
   |     ^

error: derive(Diagnostic): `#[subdiagnostic(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:676:5
   |
LL |     #[subdiagnostic(eager)]
   |     ^

error: derive(Diagnostic): expected at least one string literal for `code(...)`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:707:44
   |
LL |     #[suggestion("with a suggestion", code())]
   |                                            ^

error: derive(Diagnostic): `code(...)` must contain only string literals
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:715:44
   |
LL |     #[suggestion("with a suggestion", code(foo))]
   |                                            ^^^

error: unexpected token, expected `)`
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:715:44
   |
LL |     #[suggestion("with a suggestion", code(foo))]
   |                                            ^^^

error: expected string literal
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:724:46
   |
LL |     #[suggestion("with a suggestion", code = 3)]
   |                                              ^

error: derive(Diagnostic): `#[suggestion(...)]` is not a valid attribute
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:739:5
   |
LL |     #[suggestion("with a suggestion", code = "")]
   |     ^
   |
   = note: `#[suggestion(...)]` applied to `Vec` field is ambiguous
   = help: to show a suggestion consisting of multiple parts, use a `Subdiagnostic` annotated with `#[multipart_suggestion(...)]`
   = help: to show a variable set of suggestions, use a `Vec` of `Subdiagnostic`s annotated with `#[suggestion(...)]`

error: derive(Diagnostic): Variable `nosub` not found in diagnostic 
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:751:8
   |
LL | #[diag("does not exist: {$nosub}")]
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: Available fields: "sub"

error: cannot find attribute `nonsense` in this scope
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:60:3
   |
LL | #[nonsense("this is an example message", code = E0123)]
   |   ^^^^^^^^

error: cannot find attribute `nonsense` in this scope
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:138:7
   |
---

error: cannot find attribute `warn_` in this scope
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:518:3
   |
LL | #[warn_("this is an example message", code = E0123)]
   |   ^^^^^
   |
help: a built-in attribute with a similar name exists
   |
LL - #[warn_("this is an example message", code = E0123)]
LL + #[warn("this is an example message", code = E0123)]
   |

error: cannot find attribute `lint` in this scope
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:525:3
   |
LL | #[lint("this is an example message", code = E0123)]
   |   ^^^^
   |
help: a built-in attribute with a similar name exists
   |
LL - #[lint("this is an example message", code = E0123)]
LL + #[link("this is an example message", code = E0123)]
   |

error: cannot find attribute `multipart_suggestion` in this scope
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:565:3
   |
LL | #[multipart_suggestion("with a suggestion")]
   |   ^^^^^^^^^^^^^^^^^^^^
   |
help: `multipart_suggestion` is an attribute that can be used by the derive macro `Subdiagnostic`, you might be missing a `derive` attribute
   |
LL + #[derive(Subdiagnostic)]
---

error: cannot find attribute `multipart_suggestion` in this scope
##[error]  --> /checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-inline.rs:572:7
   |
LL |     #[multipart_suggestion("with a suggestion")]
   |       ^^^^^^^^^^^^^^^^^^^^
   |
   = note: `multipart_suggestion` is an attribute that can be used by the derive macro `Subdiagnostic`, you might be missing a `derive` attribute

error: aborting due to 75 previous errors
---
diff of stderr:

47    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
48    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
49    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-    = note: this error originates in the derive macro `StableHash` (in Nightly builds, run with -Z macro-backtrace for more info)
+    = note: the error originates in the derive macro `StableHash` (in Nightly builds, run with -Z macro-backtrace for more info)
51 
52 error: aborting due to 5 previous errors
53 
---
To only update this specific test, also pass `--test-args stable-hash-is-unstable.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
command: env -u RUSTC_LOG_COLOR RUSTC_ICE="0" RUST_BACKTRACE="short" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/stable-hash-is-unstable.rs" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Z" "ignore-directory-in-diagnostics-source-blocks=/cargo" "-Z" "ignore-directory-in-diagnostics-source-blocks=/checkout/vendor" "--sysroot" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage2" "--target=aarch64-unknown-linux-gnu" "--check-cfg" "cfg(test,FALSE)" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zdeduplicate-diagnostics=no" "-Zwrite-long-types-to-disk=no" "-Cstrip=debuginfo" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/ui-fulldeps/stable-hash-is-unstable" "-A" "unused" "-W" "unused_attributes" "-A" "internal_features" "-A" "incomplete_features" "-A" "unused_parens" "-A" "unused_braces" "-Crpath" "-Cdebuginfo=0" "-Zdeduplicate-diagnostics=yes"
stdout: none
--- stderr -------------------------------
error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
##[error]  --> /checkout/tests/ui-fulldeps/stable-hash-is-unstable.rs:2:1
   |
LL | extern crate rustc_data_structures;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
##[error]  --> /checkout/tests/ui-fulldeps/stable-hash-is-unstable.rs:6:1
   |
LL | extern crate rustc_macros;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
##[error]  --> /checkout/tests/ui-fulldeps/stable-hash-is-unstable.rs:10:1
   |
LL | extern crate rustc_middle;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
##[error]  --> /checkout/tests/ui-fulldeps/stable-hash-is-unstable.rs:15:5
   |
LL | use rustc_macros::StableHash;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
##[error]  --> /checkout/tests/ui-fulldeps/stable-hash-is-unstable.rs:20:10
   |
LL | #[derive(StableHash)]
   |          ^^^^^^^^^^
   |
   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
   = note: the error originates in the derive macro `StableHash` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 5 previous errors

For more information about this error, try `rustc --explain E0658`.

@rust-bors

rust-bors Bot commented Aug 22, 2026

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☔ The latest upstream changes (presumably #161505) made this pull request unmergeable. Please resolve the merge conflicts by rebasing.

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@estebank @rustbot @rust-log-analyzer @adwinwhite